Sunday’s Full Moon Is 2017’s Only Supermoon

(Undated) — Sunday’s full moon qualifies as a supermoon. Astronomers say it will be about 16 percent brighter and appear around seven percent bigger than normal on December 3rd. The best viewing time will be right after sunset when its closer to the horizon. A full moon is called a supermoon when its elliptical orbit comes closest to the Earth. The next two full supermoons will happen in January.